There are several battle scenes where soldiers are shot. Only minimal or moderate blood spillage is shown.
There are two instances of hand-to-hand combat where you see soldiers knifing or strangling one another, but it is shown from the side and in not much detail, with little or no blood. This is reasonably strong violence but nothing extreme.
A captured soldier is beaten quite badly during interrogation by enemy soldiers. Some blood is shown pouring from his face as he is beaten.